This series enables 2nd DAWR support on p10 qemu guest. 2nd DAWR is new watchpoint added in Power10 processor. Kernel/kvm patches are already in[1]. Watchpoint on powerpc TCG guest is not supported and thus 2nd DAWR is not enabled for TCG mode. Patches apply fine on qemu/master branch (f2afdc2ad94b). v4: https://lore.kernel.org/r/20210406053833.282907-1-ravi.bangoria@xxxxxxxxxxxxx v3->v4: - Make error message more proper. v3: https://lore.kernel.org/r/20210330095350.36309-1-ravi.bangoria@xxxxxxxxxxxxx v3->v4: - spapr_dt_pa_features(): POWER10 processor is compatible with 3.0 (PCR_COMPAT_3_00). No need to ppc_check_compat(3_10) for now as ppc_check_compati(3_00) will also be true. ppc_check_compat(3_10) can be added while introducing pa_features_310 in future. - Use error_append_hint() for hints. Also add ERRP_GUARD(). - Add kvmppc_set_cap_dawr1() stub function for CONFIG_KVM=n. v2: https://lore.kernel.org/r/20210329041906.213991-1-ravi.bangoria@xxxxxxxxxxxxx v2->v3: - Don't introduce pa_features_310[], instead, reuse pa_features_300[] for 3.1 guests, as there is no difference between initial values of them atm. - Call gen_spr_book3s_310_dbg() from init_proc_POWER10() instead of init_proc_POWER8(). Also, Don't call gen_spr_book3s_207_dbg() from gen_spr_book3s_310_dbg() as init_proc_POWER10() already calls it. v1: https://lore.kernel.org/r/20200723104220.314671-1-ravi.bangoria@xxxxxxxxxxxxx [Apologies for long gap] v1->v2: - Introduce machine capability cap-dawr1 to enable/disable the feature. By default, 2nd DAWR is OFF for guests even when host kvm supports it. User has to manually enable it with -machine cap-dawr1=on if he wishes to use it. - Split the header file changes into separate patch. (Sync headers from v5.12-rc3) [1] https://git.kernel.org/torvalds/c/bd1de1a0e6eff Ravi Bangoria (3): Linux headers: update from 5.12-rc3 ppc: Rename current DAWR macros and variables ppc: Enable 2nd DAWR support on p10 hw/ppc/spapr.c | 7 +- hw/ppc/spapr_caps.c | 32 +++++++ include/hw/ppc/spapr.h | 8 +- include/standard-headers/drm/drm_fourcc.h | 23 ++++- include/standard-headers/linux/input.h | 2 +- .../standard-headers/rdma/vmw_pvrdma-abi.h | 7 ++ linux-headers/asm-generic/unistd.h | 4 +- linux-headers/asm-mips/unistd_n32.h | 1 + linux-headers/asm-mips/unistd_n64.h | 1 + linux-headers/asm-mips/unistd_o32.h | 1 + linux-headers/asm-powerpc/kvm.h | 2 + linux-headers/asm-powerpc/unistd_32.h | 1 + linux-headers/asm-powerpc/unistd_64.h | 1 + linux-headers/asm-s390/unistd_32.h | 1 + linux-headers/asm-s390/unistd_64.h | 1 + linux-headers/asm-x86/kvm.h | 1 + linux-headers/asm-x86/unistd_32.h | 1 + linux-headers/asm-x86/unistd_64.h | 1 + linux-headers/asm-x86/unistd_x32.h | 1 + linux-headers/linux/kvm.h | 89 +++++++++++++++++++ linux-headers/linux/vfio.h | 27 ++++++ target/ppc/cpu.h | 6 +- target/ppc/kvm.c | 12 +++ target/ppc/kvm_ppc.h | 12 +++ target/ppc/translate_init.c.inc | 19 +++- 25 files changed, 250 insertions(+), 11 deletions(-) -- 2.17.1
